Description
the 100208470 is the designated manufacturer replacement for the discontinued RLY20055 control board
it is designed to operate accurately when mounted in any position
Is the Nordyne 903433 reversible
Standardized Threading: Features a 1/4 NPT connection for a secure
The counterclockwise lead end (CCWLE) rotation and 1/2-inch x 2
Siemens Building Technology 599-10303 Valve 321142-301 the 100208470 is the designatedThis Siemens 599 10303 is a 1 2 inch, two way ball valve designed for precision fluid control in HVAC systems. Engineered with a 1. 6 Cv and equal percentage flow characteristic, it ensures linear heat output when used in chilled water or hot water applications, including 50% glycol mixtures. The brass body is reinforced with a chrome plated brass ball and brass stem, providing a 200 psi close off rating and meeting ANSI Class IV leakage standards.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy

























